Ragnar E. L�fstedt is Professor of Risk Management and Director of King's Centre for Risk Management. He is a renowned expert in the changing nature of regulation in Europe and the role of public's trust in understanding present day regulation. He is Series Editor of the Risk, Society and Policy Series, and author or editor of numerous books, including Facility Siting (2004), Transboundary Risk Management (2001), The Earthscan Reader in Risk and Modern Society (1998) and Cases in Climate Change Policy (1997).Fr�d�ric Bouder, formerly with the Organisation for Economic Co-operation and Development, is a senior policy analyst at the King's Centre for Risk Management, King's College… London, UK, where he is developing pioneering research on pharmaceutical, chemical and nuclear risk regulation.